Automatic Carving Device for Wheel

ABSTRACT

The present invention discloses an automatic carving device for a wheel, mainly consisting of a rack, a chassis, a lifting cylinder, brackets A, bearing blocks, linear bearings, mounting plates, guide shafts, a lifting shaft, a servo motor A, a synchronous pulley A, a connection plate, a synchronous belt, a synchronous pulley B, a pedestal, a connection shaft A, a servo motor B, a shaft sleeve A, a lower end cover, a connection shaft B, a shaft sleeve B, and an oil cylinder. The automatic carving device for the wheel provided by the present invention can meet the requirement of automatically carving characters on the wheel, meanwhile has the characteristics of simple structure, convenience for manufacturing, stable performance and high precision that can meet the machining requirement, and can also meet the requirement of automatic production.

TECHNICAL FIELD

The present invention relates to a machining device, in particular to anautomatic carving device during a wheel machining process.

BACKGROUND ART

During the machining process of an automobile wheel, after the machiningof the wheel is completed, corresponding text information needs to becarved at different positions of an outer rim of the wheel, for addingtraceability of the wheel. At present, wheel manufacturing enterprisesusually adopt two ways including pneumatic carving and laser carving,which have the problem that the two carving ways are low in efficiency,large in amount of labor and unclear in carved characters. The presentinvention introduces a full-automatic online carving device which isefficient and clear in carved characters.

SUMMARY OF THE INVENTION

An objective of the present invention is to provide an automatic carvingdevice for a wheel.

To achieve the object described above, a technical solution of thepresent invention is as follows: an automatic carving device for a wheelis mainly composed of a rack, a chassis, a lifting cylinder, brackets A,bearing blocks, linear bearings, mounting plates, guide shafts, alifting shaft, a servo motor A, a synchronous pulley A, a connectionplate, a synchronous belt, a synchronous pulley B, a pedestal, aconnection shaft A, a servo motor B, a shaft sleeve A, a lower endcover, a connection shaft B, a shaft sleeve B, an oil cylinder, bearingsA, end covers, a gland, bearings B, a chassis, a flange plate, pinrolls, springs, expanding petals, a connection shaft C, a protection, anexpanding core, a servo motor C, a lead screw A, a linear guide rail A,a sliding rack, a linear guide rail B, a lead screw B, a servo motor D,a sliding rack B 42, a runout detector 43, a detection roll 44, and abracket B 45. The chassis 2 and the bracket B 45 are fixed on the rack1, the mounting plates are fixed on the chassis via the brackets A, thebearing blocks are fixed on the mounting plates, the lifting shaft isinstalled on the bearing blocks via the linear bearings, two ends of thelifting shaft are connected with the connection plate and an outputshaft of the lifting cylinder respectively, the servo motor A and thepedestal are fixed on the connection plate, the shaft sleeve A isinstalled on the pedestal via the bearings A and the end covers, thesynchronous pulley A is connected with an output shaft of the servomotor A, the synchronous pulley B is connected with the connection shaftA, and the synchronous belt is connected with the synchronous pulley Aand the synchronous pulley B, respectively.

The lower end cover, the gland and the chassis are fixed on the shaftsleeve A, the servo motor B is installed at the lower end cover, theshaft sleeve B is installed on the shaft sleeve A via the bearings B andthe gland, the oil cylinder is fixed in the shaft sleeve B, an outputend of the oil cylinder is connected with the connection shaft C, theservice motor B is connected with the shaft sleeve B via the connectionshaft B, the expanding core is connected with the shaft sleeve B via theconnection shaft C, the expanding core, the connection shaft C and theshaft sleeve B are circumferentially locked without relative rotation,the connection shaft C and the shaft sleeve B can relatively moveaxially, the flange plate is fixed on the chassis, eight uniformlydistributed T-shaped sliding chutes are formed in an inner cavity of theflange plate and the chassis, bottom surfaces of the eight expandingpedals are in one-to-one correspondence with the eight T-shaped slidingchutes respectively, the expanding pedals can slide smoothly in thesliding chutes with high precision, the inner side wall of eachexpanding pedal is a slope of 15 degrees, and two ends of each of theeight springs are connected with the flange plate and the correspondingexpanding pedal respectively; side surfaces of the expanding corecomprise two sets of slopes of 15 degrees which are uniformlydistributed at intervals, the number of slopes in each set is eight, thetwo slopes have a height difference, side walls of the upper ends of thetwo sets of slopes join at a conical surface, under the combined effectof the tensile force of the oil cylinder and the elastic force of thesprings, when the expanding core is placed at a bottommost position,side walls of the expanding pedals contact the conical surface of theexpanding core, the servo motor B drives the expanding core via theconnection shaft C, the shaft sleeve B and the connection shaft C torotate for 22.5 degrees, and the expanding pedals are matched with theslopes and can convert between the two sets of uniformly spaced slopesof the expanding core. The oil cylinder drives the connection shaft Cand the expanding core to move up and down, by the slope cooperation ofthe expanding pedals and the slopes of the expanding core, the eightexpanding pedals synchronously move centripetally and centrifugallyalong the eight uniformly distributed T-shaped sliding chutes formed inthe inner cavity of the flange plate and the chassis, and thereby theeight expanding pedals achieves the high-precision synchronous expandingand shrinking function; as the two sets of uniformly spaced slopes ofthe side surfaces of the expanding core have the height difference, theservo motor B drives the expanding core to rotate for 22.5 degrees, theexpanding pedals are matched with the slopes and can convert between thetwo sets of uniformly spaced slopes of the expanding core, and therebythe expanding and shrinking diameter of the pedals changes within twodifferent ranges, and finally the expanding pedals achieve large-strokeexpanding and shrinking.

The chassis and the flange plate are provided with corresponding pinholes, and the pin rolls are connected with the pin holes of the chassisand the flange plate respectively, thus ensuring the assembly precisionof the chassis and the flange plate.

The servo motor C and the linear guide rail A are fixed on the mountingbracket, the lead screw A is connected with the sliding rack A and theservo motor C, the servo motor C can drive the sliding rack A via thelead screw A to move up and down along the linear guide rail A; thelinear guide rail B and the servo motor D are fixed on the sliding rackA, the lead screw B is connected with the sliding rack B and the servomotor D, a runout detector is installed on the sliding rack B, adetection roll is installed on the runout detector, the servo motor Dcan drive the sliding rack B, the runout detector and the sliding rack Bvia the lead screw B to move left or right along the linear guide railB.

When in actual use, a wheel is conveyed to a working position of thedevice via a roller way, compressed air is fed, the lifting cylinderdrives a clamping mechanism to raise, the flange surface of the wheelcontacts the flange plate, and then the lifting cylinder lifts the wheelto a specified position. An oil cylinder rod of the oil cylinder is in ashrunk state, and under the effect of the springs, the slopes of theexpanding pedals contact the upper conical surface of the expandingcore. According to the size of the center hole diameter of the wheel, byrotating the expanding core for a specific angle under the driving ofthe servo motor A, the slopes of the expanding pedals are matched withthe corresponding slopes of the expanding core, then the oil cylinderstarts operation, the oil cylinder overcomes the elastic force of thesprings to drive the connection shaft B and the expanding core to moveupwards, by the slope cooperation of the expanding pedals and the slopesof the expanding core, each expanding pedal synchronously moves towardsthe outer side along the eight uniformly distributed T-shaped slidinggrooves formed in the inner cavity of the flange plate and the chassis,and finally the expanding pedals contact a center hole of the wheel, andthe positioning and expanding process of the wheel is completed.According to various size parameters for machining the wheel, under thecontrol of the servo motor C and the servo motor D, the carving machineand the carving knife move to a carving position of an outer rim of thewheel, then the servo motor A drives the wheel to rotate, meanwhile, thecarving machine controls the carving knife to carve characters on theouter rim of the wheel, and via controlling the rotation speed of theservo motor A, the carving machine completes the circumferential carvingwork of the outer rim of the wheel.

The present invention can meet the requirement of carving the characterson the wheel, meanwhile has the characteristics of simple structure,convenience for manufacturing, stable performance and high precisionthat can meet the machining requirement, and can also meet therequirement of automatic production.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a structural schematic diagram of an automatic carving devicefor a wheel provided by the present invention.

FIG. 2 is a structural schematic diagram of an expanding core in anautomatic carving device for a wheel provided by the present invention.

FIG. 3 is a structural schematic diagram of an expanding core in anautomatic carving device for a wheel provided by the present invention.

In the figures, 1-rack, 2-chasis, 3-lifting cylinder, 4-bracket A,5-bearing block, 6-linear bearing, 7-mounting plate, 8-guide shaft,9-lifting shaft, 10-servo motor A, 11-synchronous pulley A,12-connection plate, 13-synchronous belt, 14-synchronous pulley B,15-pedestal, 16-conection shaft A, 17-servo motor B, 18-shaft sleeve A,19-lower end cover, 20-connection shaft B, 21-shaft sleeve B, 22-oilcylinder, 23-bearing A, 24-end cover, 25-gland, 26-bearing B,27-chassis, 28-flange plate, 29-pin roll, 30-spring, 31-expanding petal,32-connection shaft B, 33-protection, 34-expanding core, 35-servo motorC, 36-lead screw A, 37-linear guide rail A, 38-sliding rack A, 39-linearguide rail B, 40-lead screw B, 41-servo motor D, 42-sliding rack A,43-carving machine, 44-carving knife, and 45-bracket B.

DETAILED DESCRIPTION OF THE INVENTION

In the following, the details and working conditions of a specificdevice provided by the present invention are described in combinationwith the figures.

An automatic carving device for a wheel provided by the invention iscomposed of a rack 1, a chassis 2, a lifting cylinder 3, brackets A 4,bearing blocks 5, linear bearings 6, mounting plates 7, guide shafts 8,a lifting shaft 9, a servo motor A 10, a synchronous pulley A 11, aconnection plate 12, a synchronous belt 13, a synchronous pulley B 14, apedestal 15, a connection shaft A 16, a servo motor B 17, a shaft sleeveA 18, a lower end cover 19, a connection shaft B 20, a shaft sleeve B21, an oil cylinder 22, bearings A 23, end covers 24, a gland 25,bearings B 26, a chassis 27, a flange plate 28, pin rolls 29, springs30, expanding petals 31, a connection shaft C 32, a protection 33, anexpanding core 34, a servo motor C 35, a lead screw A 36, a linear guiderail A 37, a sliding rack 38, a linear guide rail B 39, a lead screw B40, a servo motor D 41, a sliding rack B 42, a carving machine 43, acarving knife 44, and a bracket B 45. The chassis 2 and the bracket B 45are fixed on the rack 1, the mounting plates 7 are fixed on the chassis2 via the brackets A 4, the bearing blocks 5 are fixed on the mountingplates 7, the lifting shaft 9 is installed on the bearing blocks 5 viathe linear bearings 6, two ends of the lifting shaft 9 are connectedwith the connection plate 12 and an output shaft of the lifting cylinder3 respectively, the servo motor A 10 and the pedestal 15 are fixed onthe connection plate 12, the shaft sleeve A 18 is installed on thepedestal 15 via the bearings A 23 and the end covers 24, the synchronouspulley A 11 is connected with an output shaft of the servo motor A 10,the synchronous pulley B 14 is connected with the connection shaft A 16,and the synchronous belt 13 is connected with the synchronous pulley A11 and the synchronous pulley B 14, respectively.

The lower end cover 19, the gland 25 and the chassis 27 are fixed on theshaft sleeve A 18, the servo motor B 17 is installed at the lower endcover 19, the shaft sleeve B 21 is installed on the shaft sleeve A 18via the two rows of bearings B 26 and the gland 25, the oil cylinder 22is fixed in the shaft sleeve B 21, an output end of the oil cylinder 22is connected with the connection shaft C 32. the servo motor B 17 isconnected with the shaft sleeve B 21 via the connection shaft B 20, theexpanding core 34 is connected with the shaft sleeve B 21 via theconnection shaft C 32, the expanding core 34, the connection shaft C 32and the shaft sleeve B 21 are circumferentially locked without relativerotation, the connection shaft C 32 and the shaft sleeve B 21 canrelatively move axially, the flange plate 28 is fixed on the chassis 27,eight uniformly distributed T-shaped sliding chutes are formed in aninner cavity of the flange plate 28 and the chassis 27, bottom surfacesof the eight expanding pedals 31 are T-shaped structures respectivelymatched and in one-to-one correspondence with the eight T-shaped slidingchutes, the expanding pedals 31 can slide smoothly in the sliding chuteswith high precision, the inner side wall of each expanding pedal 31 is aslope of 15 degrees, and two ends of each of the eight springs 30 areconnected with the flange plate 28 and the corresponding expanding pedal31 respectively; side surfaces of the expanding core 34 comprise twosets of slopes 34-1 and slopes 34-2 of 15 degrees which are uniformlydistributed at intervals, the number of slopes in each set is eight, twoslopes have a height difference, side walls of the upper ends of the twosets of slopes join at a conical surface 34-3, under the combined effectof the tensile force of the oil cylinder 22 and the elastic force of thesprings 30, when the expanding core 34 is placed at a bottommostposition, side walls of the expanding pedals 31 contact the conicalsurface 34-3 of the expanding core 34, the servo motor B 17 drives theexpanding core 34 via the connection shaft B 20, the shaft sleeve B 21and the connection shaft C 32 to rotate for 22.5 degrees, and theexpanding pedals 31 are matched with the slopes and can convert betweenthe slopes 34-1 and 35-2 of the expanding core 34. The oil cylinder 22drives the connection shaft C 32 and the expanding core 34 to move upand down, by the slope cooperation of the expanding pedals 31 and theslopes of the expanding core 34, the eight expanding pedals 31synchronously move centripetally and centrifugally along the eightuniformly distributed T-shaped sliding chutes formed in the inner cavityof the flange plate 28 and the chassis 27, and thereby the eightexpanding pedals 31 achieves the high-precision synchronous expandingand shrinking function; as the two sets of uniformly spaced slopes ofthe side surfaces of the expanding core 34 have the height difference,the servo motor B 17 drives the expanding core 34 to rotate for 22.5degrees, the expanding pedals 31 are matched with the slopes and canconvert between the slopes 34-1 and 34-2 of the expanding core 34, andthereby the expanding and shrinking diameter of the pedals 31 changeswithin two different ranges, and finally the expanding pedals achievelarge-stroke expanding and shrinking.

The chassis 27 and the flange plate 28 are provided with correspondingpin holes, and the pin rolls 29 are connected with the pin holes of thechassis 27 and the flange plate 28 respectively, thus ensuring theassembly precision of the chassis 27 and the flange plate 28.

The servo motor C 35 and the linear guide rail A 37 are fixed on themounting bracket 45, the lead screw A 36 is connected with the slidingrack A 38 and the servo motor C 35, the servo motor C 35 can drive thesliding rack A 38 via the lead screw A 36 to move up and down along thelinear guide rail A 37; the linear guide rail B 39 and the servo motor D41 are fixed on the sliding rack A 38, the lead screw B 40 is connectedwith the sliding rack B 42 and the servo motor D 41, a runout detector43 is installed on the sliding rack B 42, a detection roll 44 isinstalled on the runout detector 43, the servo motor D 41 can drive thesliding rack B 42, the runout detector 43 and the sliding rack B 42 viathe lead screw B 40 to move left or right along the linear guide rail B39.

When in actual use, a wheel is conveyed to a working position of thedevice via a roller way, compressed air is fed, the lifting cylinder 3drives a clamping mechanism to raise, the flange surface of the wheelcontacts the flange plate 28, and then the lifting cylinder 3 lifts thewheel to a specified position. An oil cylinder rod of the oil cylinder22 is in a shrunk state, and under the effect of the springs 30, theslopes of the expanding pedals 31 contact the upper conical surface ofthe expanding core 34. According to the size of the center hole diameterof the wheel, by rotating the expanding core 34 for a specific angleunder the driving of the servo motor A 10, the slopes of the expandingpedals 31 are matched with the corresponding slopes of the expandingcore 34, then the oil cylinder 22 starts operation, the oil cylinder 22overcomes the elastic force of the springs 30 to drive the connectionshaft C 32 and the expanding core 34 to move upwards, by the slopecooperation of the expanding pedals 31 and the slopes of the expandingcore 33, each expanding pedal 31 synchronously moves towards the outerside along the eight uniformly distributed T-shaped sliding groovesformed in the inner cavity of the flange plate 28 and the chassis 27,and finally the expanding pedals 31 contact a center hole of the wheel,and the positioning and expanding process of the wheel is completed.According to various size parameters for machining the wheel, under thecontrol of the servo motor C 35 and the servo motor D 41, the carvingmachine 43 and the carving knife 44 move to a carving position of anouter rim of the wheel, then the servo motor A 10 drives the wheel torotate, meanwhile, the carving machine 43 controls the carving knife tocarve characters on the outer rim of the wheel, and via controlling therotation speed of the servo motor A 10, the carving machine 43 completesthe circumferential carving work of the outer rim of the wheel.

1. An automatic carving device for a wheel, comprising: a rack, achassis, a lifting cylinder, brackets A, bearing blocks, linearbearings, mounting plates, guide shafts, a lifting shaft, a servo motorA, a synchronous pulley A, a connection plate, a synchronous belt, asynchronous pulley B, a pedestal, a connection shaft A, a servo motor B,a shaft sleeve A, a lower end cover, a connection shaft B, a shaftsleeve B, an oil cylinder, bearings A, end covers, a gland, bearings B,a chassis, a flange plate, pin rolls, springs, expanding petals, aconnection shaft C, a protection, an expanding core, a servo motor C, alead screw A, a linear guide rail A, a sliding rack A, a linear guiderail B, a lead screw B, a servo motor D, a sliding rack B, a carvingmachine, a carving knife, and a bracket B; wherein the chassis and thebracket B are fixed on the rack, the mounting plates are fixed on thechassis via the brackets A, the bearing blocks are fixed on the mountingplates, the lifting shaft is installed on the bearing blocks via thelinear bearings, two ends of the lifting shaft are connected with theconnection plate and an output shaft of the lifting cylinderrespectively, the servo motor A and the pedestal are fixed on theconnection plate, the shaft sleeve A is installed on the pedestal viathe bearings A and the end covers, the synchronous pulley A is connectedwith an output shaft of the servo motor A, the synchronous pulley B isconnected with the connection shaft A, and the synchronous belt isconnected with the synchronous pulley A and the synchronous pulley B,respectively; the lower end cover, the gland and the chassis are fixedon the shaft sleeve A, the servo motor B is installed at the lower endcover, the shaft sleeve B is installed on the shaft sleeve A via thebearings B and the gland, the oil cylinder is fixed in the shaft sleeveB, an output end of the oil cylinder is connected with the connectionshaft B, the servo motor B is connected with the shaft sleeve B via theconnection shaft B, the expanding core is connected with the shaftsleeve B via the connection shaft C, the expanding core, the connectionshaft C and the shaft sleeve B are circumferentially locked withoutrelative rotation, the connection shaft C and the shaft sleeve B canrelatively move axially, the flange plate is fixed on the chassis, eightuniformly distributed T-shaped sliding chutes are formed in an innercavity of the flange plate and the chassis, bottom surfaces of the eightexpanding pedals are respectively in one-to-one correspondence with theeight T-shaped sliding chutes, the expanding pedals can slide smoothlyin the sliding chutes with high precision, the inner side wall of eachexpanding pedal is a slope of 15 degrees, and two ends of each of theeight springs are connected with the flange plate and the correspondingexpanding pedal respectively; side surfaces of the expanding corecomprise two sets of slopes and slopes of 15 degrees which are uniformlydistributed at intervals, the number of slopes in each set is eight, twoslopes have a height difference, side walls of the upper ends of the twosets of slopes join at a conical surface, when the expanding core isplaced at a bottommost position, side walls of the expanding pedalscontact the conical surface of the expanding core, the servo motor Bdrives the expanding core via the connection shaft B, the shaft sleeve Band the connection shaft C to rotate for 22.5 degrees, and the expandingpedals are matched with the slopes and can convert between the slopesand of the expanding core; the oil cylinder drives the connection shaftC and the expanding core to move up and down, by the slope cooperationof the expanding pedals and the slopes of the expanding core, the eightexpanding pedals synchronously move centripetally and centrifugallyalong the eight uniformly distributed T-shaped sliding chutes formed inthe inner cavity of the flange plate and the chassis, and thereby theeight expanding pedals achieves the high-precision synchronous expandingand shrinking function; and the servo motor C and the linear guide railA are fixed on the mounting bracket, the lead screw A is connected withthe sliding rack A and the servo motor C, the servo motor C can drivethe sliding rack A via the lead screw A to move up and down along thelinear guide rail A; the linear guide rail B and the servo motor D arefixed on the sliding rack A, the lead screw B is connected with thesliding rack B and the servo motor D, the carving machine is installedon the sliding rack B, the carving knife is installed on the carvingmachine, the servo motor D can drive the sliding rack B, the carvingmachine and the sliding rack B via the lead screw B to move left orright along the linear guide rail B.
 2. The online runout detectiondevice for the wheel according to claim 1, wherein the chassis and theflange plate are provided with corresponding pin holes, and the pinrolls are connected with the pin holes of the chassis and the flangeplate respectively, thus ensuring the assembly precision of the chassisand the flange plate.